## About The Pull Request
Removes Bubber modular edits since they've been upstreamed in
https://github.com/tgstation/tgstation/pull/88687
Also moves export gate to the new flatpacks.dm
## Changelog
🆑 LT3
add: Mail sorter is now available in the CargoDrobe instead of sitting
on the office floor
add: Bounty cube export gate is now available in the CargoDrobe instead
of sitting on the warehouse floor
/🆑
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Co-authored-by: tgstation-ci[bot] <179393467+tgstation-ci[bot]@users.noreply.github.com>
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